Yeah the offroad package had honeycomb wheels, and wider tires, hence the need for the 4.77's. Member "Wisdom" should be able to help locate some more if they are out there, he found mine for me about a year ago:
http://www.vehicross.info/forums/sho...highlight=4.77
http://www.vehicross.info/forums/sho...ight=rear+diff
http://www.vehicross.info/forums/sho...highlight=4.77